// MIT License (MIT)
// 
// Copyright (c) 2014 K Ercan Turkarslan
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// 

using System;
using System.Runtime.Serialization;
using System.Text;
using Mios.ExtensionMethods;

namespace Mios.MiosConnection.JSONStructures
{
    [DataContract]
    public class JsonIdentityPackage
    {
        [DataMember(Name = "Identity")]
        public string IdentityBase64 { get; private set; }

        public string IdentityText { get; private set; }

        public JsonIdentityDetails IdentityDetails { get; private set; }

        [DataMember(Name = "IdentitySignature")]
        public string IdentitySignature { get; private set; }

        [DataMember(Name = "Server_Event")]
        public string EventServer { get; private set; }

        [DataMember(Name = "Server_Event_Alt")]
        public string EventServerAlt { get; private set; }

        [DataMember(Name = "Server_Account")]
        public string AccountServer { get; private set; }

        [DataMember(Name = "Server_Account_Alt")]
        public string AccountServerAlt { get; private set; }

        public DateTime Generated { get; internal set; }

        public DateTime Expires { get; internal set; }

        public Boolean IsStale
        {
            get { return Expires < DateTime.Now; }
        }

        public static JsonIdentityPackage GetIdentityPackage(String httpString)
        {
            var resultStream = HttpConnection.HttpGetStream(httpString);

            var identityPackage = SimpleJsonSerializer.Deserialize(typeof(JsonIdentityPackage), resultStream) as JsonIdentityPackage;

            if (identityPackage == null)
                throw new InvalidOperationException("identityPackage is null");

            identityPackage.IdentityText =
                Encoding.UTF8.GetString(Convert.FromBase64String(identityPackage.IdentityBase64));

            identityPackage.IdentityDetails =
                SimpleJsonSerializer.Deserialize(typeof(JsonIdentityDetails), identityPackage.IdentityText) as JsonIdentityDetails;

            if (identityPackage.IdentityDetails == null)
                throw new InvalidOperationException("identityPackage.IdentityDetails is null");

            identityPackage.Generated = ((double) identityPackage.IdentityDetails.Generated).UnixTimestampToDateTime();
            identityPackage.Expires = ((double) identityPackage.IdentityDetails.Expires).UnixTimestampToDateTime();

            return identityPackage;
        }
    }
}